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sigma

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1. Is there a consensus on which is the best grade of fuel to use?

2. So the manual says the break-in period is 1000 miles, but it doesn't say what range of speeds are acceptable to drive it at. What are my elder Raptor owners' thoughts on that? I've been keeping it under 55 mph because that's what the break-in was like for my '09 M3.

Thanks in advance y'all!
 

8WOOD

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1. Is there a consensus on which is the best grade of fuel to use?

2. So the manual says the break-in period is 1000 miles, but it doesn't say what range of speeds are acceptable to drive it at. What are my elder Raptor owners' thoughts on that? I've been keeping it under 55 mph because that's what the break-in was like for my '09 M3.

Thanks in advance y'all!

This engine is designed to work safely with 87, but with a higher octane fuel will allow the timing to advance and you get the rated 450hp and 510torque.

If you own this BMW and sweat ass truck you can afford to put 91 or better in it so you have all your power on tap. If you choose to run shell, chevrons or other top their 91 or higher that have a lot of additives that help to keep carbon composites from building up on the mechanical parts. But really all fuels are required to have a certain amount of additives by the government, shell and chevron have just been proven to have most effective additives.


I'm sure that's fine, but I think the engineers just don't want people blasting around at 90 mph if a new tire or drive or transmission fails.

Your engine will be fine if you take it slow or floor it everywhere. If not following the break in was causing failures Ford would actually train and enforce their sales people that it must be enforced.
 

xxaarraa

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I notice I get slightly better mpg with 87 compared to 93, both while daily driving and towing my 5000lb trailer. Power feels the same on the butt dyno. The difference between 87 and 93 while filling a 36 gallon tank could be 20 bucks, and I fill up 4-5 times a month.

I plan on continuing to use 87.
 

8WOOD

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I notice I get slightly better mpg with 87 compared to 93, both while daily driving and towing my 5000lb trailer. Power feels the same on the butt dyno. The difference between 87 and 93 while filling a 36 gallon tank could be 20 bucks, and I fill up 4-5 times a month.

I plan on continuing to use 87.

Considering that premium gas is generally only 30 cents more than regular.... that's only 10.5 dollars more from the base price... if you fill up 35 gallons.
 

WhatExit?

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1. Premium fuel for best performance. It's a $70k vehicle and you want to run regular in an engine Ford says will run better with premium?

2. 55MPH or less? Are you FKM? Drive it! Just avoid being hard on the brakes early on and vary the speed (easy to do - I drove for hours and hours coming home from picking it up and it was very easy to vary the speed).

Don't baby it. Don't abuse it. Drive it and after it's "broken in" drive it like you own it :crazy:
 

xxaarraa

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Everyone that says "$70k vehicle, you cant run expensive gas?" is spewing out stereotypes and what they heard everyone else say. There is no definitive proof that 93 makes the truck run better, manufacturer doesn't say so for the Gen 2s. There are only 50 page threads where people spew out stereotypes. In my experience, I actually get better results with 87.

I also have a 15 Vette, 16 Yamaha R1, 13 Aprilia RSV4 and an RS250. I run 93 in all of those because I notice a difference. I run 87 in the truck because I don't notice a difference. I can afford nice things, but I also do not do things just because everyone else says to. I try to draw my own conclusions.
 
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df4801

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I notice a difference.

My $70k truck does 0-60 in 5.3 on 93 octane and 5.4 on 87.

So when I'm drag racing in my high performance truck and I need that extra 0.1 in 0-60 times, then I run 93.
 

xxaarraa

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I notice a difference.

My $70k truck does 0-60 in 5.3 on 93 octane and 5.4 on 87.

So when I'm drag racing in my high performance truck and I need that extra 0.1 in 0-60 times, then I run 93.

Perfectly logical, if you notice a difference for your intended use, by all means use 93. If anything your numbers prove that people will not notice a difference in everyday use.

One does have to ask why you would drag race a 5800 lb truck in the first place, but hey, it's yours so you can do what ever pleases you.
 

17lbraptor

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I am running premium fuel as others have mentioned and do try to stick with a top tier gas when possible. (Shell, Exxon etc).

For break in I varied the throttle a lot tried not to use cruise at one speed or rpm for extended periods and did not hammer it to many times for the first 600 miles approximately.
 
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